Sökning: "features selection"

Visar resultat 1 - 5 av 394 uppsatser innehållade orden features selection.

1. 1. Feature Selection for Microarray Data via Stochastic Approximation

   Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

   Författare :Erik Rosvall; [2024-03-18]
   Nyckelord :feature selection; feature ranking; microarray data; stochastic approximation; Barzilai and Borwein method; Machine Learning; AI;

   Sammanfattning : This thesis explores the challenge of feature selection (FS) in machine learning, which involves reducing the dimensionality of data. The selection of a relevant subset of features from a larger pool has demonstrated its effectiveness in enhancing the performance of various machine learning algorithms. LÄS MER

3. 2. ”HAR JAG EN BOK I ÖRONEN KAN JAG GÅ HUR LÅNGT SOM HELST”. En kvalitativ studie om användares relation till ljudböcker jämfört med tryckta böcker

   Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

   Författare :Henrietta Lundkvist; [2024-03-06]
   Nyckelord :Digital konvergens; streaming; algoritmer; ljudböcker; plattformar; uses gratifications; affordances;

   Sammanfattning : Har jag en bok i öronen kan jag gå hur långt som helst, or If I have a book in my ears, I can walk as far as I want, is a qualitative study that explores users' relationship with streamed audiobooks, compared to books in printed format. The choice of topic is driven by the fact that digitalization has transformed literature as a medium and the book industry as an enterprise. LÄS MER

4. 3. Force Type ID, a Two-Factor-Authentication based on force sensitive keys and password

   Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

   Författare :Fawad Ahmad; [2024]
   Nyckelord :;

   Sammanfattning : The conventional computer keyboard keys work as binary switch systems and have stayed the same since the invention of typewriters. With the accelerated progress in forcesensing technology, force-sensitive keyboards have become viable consumer products due to advancements in manufacturing. LÄS MER

5. 4. An Empirical Survey of Bandits in an Industrial Recommender System Setting

   Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

   Författare :Tobias Schwarz; Johan Brandby; [2023-09-21]
   Nyckelord :computer science; industrial application; machine learning; reinforcement learning; multi-armed bandits; MAB; contextual multi-armed bandits; survey; batch learning;

   Sammanfattning : In this thesis, the effects of incorporating unstructured data—images in the wild—in contextual multi-armed bandits are investigated, when used within a recommender system setting, which focuses on picture-based content suggestion. The idea is to employ image features, extracted by a pre-trained convolutional neural network, and study the resulting bandit behaviors when including respective excluding this information in the typical context creation, which normally relies on structured data sources—such as metadata. LÄS MER

7. 5. VI LJUGER INTE HELT, MEN VI TALAR INTE OM HELA SANNINGEN - En kvalitativ innehållsanalys av svensk greenwashing

   Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

   Författare :Ebba Bäckman; Ella Åberg; [2023-09-20]
   Nyckelord :Greenwashing; Grön marknadsföring; Reklam; Multimodal analys; Semiotik; Retorikanalys;

   Sammanfattning : In the society of today environmental issues have a major impact on the agenda, which calls for the fact that organisations need to start prioritizing communication that strengthen their environmental profile. Since the demand for environmental friendly products and services increases the organisations need to work harder to market green products and services. LÄS MER